Ammonium Bichromate / Dichromate – 500 gram Packs

Ammonium Dichromate, also called ammonium bichromate, is an inorganic chromium(VI) salt with the molecular formula (NH₄)₂Cr₂O₇ and a molecular weight of approximately 252.06 g/mol. It is an orange to red crystalline solid and a strong oxidizing agent. On heating, it undergoes decomposition and can release hazardous fumes and particulate matter. The compound is relevant to selected inorganic chemistry investigations and specialized research involving oxidation-reduction reactions and chromium chemistry. However, its significant health, environmental, and oxidizing hazards require strict controls. It is not suitable for routine school demonstrations or casual handling. Use should be limited to trained personnel in appropriately equipped laboratories following a documented risk assessment and applicable hazardous-chemical procedures.

Product Specifications

Specification	Details
Appearance	Orange to red crystalline solid
Assay	99%
Chemical Name	Ammonium dichromate
Alternate Names	Ammonium bichromate, diammonium dichromate
Molecular Formula	(NH₄)₂Cr₂O₇
Empirical Formula	H₄NCrO₃.₅ (simplest ratio expressed fractionally); conventional formula unit: (NH₄)₂Cr₂O₇
CAS Number	7789-09-5
Molecular Weight	252.06 g/mol
Grade	LR Laboratory Reagent

Key Features of Ammonium Dichromate

• Inorganic chromium(VI) compound containing ammonium and dichromate ions.
• Orange to red crystalline material with a formula mass of approximately 252.06 g/mol.
• Strong oxidizing properties make it relevant to controlled redox chemistry investigations.
• Heating can cause decomposition and release hazardous substances.
• Requires strict exposure prevention, oxidizer controls, and hazardous-waste management.

Laboratory Applications of Ammonium Dichromate

• Specialized inorganic chemistry research involving chromium(VI) compounds under approved risk controls.
• Controlled oxidation-reduction investigations where the compound is specifically required by a validated procedure.
• Analytical or research procedures involving dichromate chemistry in facilities equipped to manage chromium(VI) hazards.
• Studies of thermal decomposition conducted only when specifically justified by a documented risk assessment and suitable containment.
• Advanced laboratory investigations of oxidizing agents, restricted to trained personnel and compliant hazardous-material procedures.

Why Choose Lab Wale to Buy Ammonium Dichromate

Lab Wale offers a sourcing option for laboratory chemicals and scientific supplies used by institutional and research laboratories. Ammonium Dichromate requires careful review of chemical identity, grade, safety documentation, legal requirements, and waste-management arrangements before purchase. Laboratories should confirm that the material is permitted for the intended application and that trained personnel and suitable engineering controls are available. Its significant hazards make careful purchasing and use planning essential.

Frequently Asked Questions About Ammonium Dichromate

What is the chemical formula of Ammonium Dichromate?

Ammonium Dichromate has the molecular formula (NH₄)₂Cr₂O₇ and a molecular weight of approximately 252.06 g/mol. It contains chromium in the +6 oxidation state, which is a major factor in its oxidizing behaviour and significant health and environmental hazards.

What is the CAS number of Ammonium Dichromate?

The CAS Registry Number for Ammonium Dichromate is 7789-09-5. The compound is also known as ammonium bichromate. Confirm the product label and current safety documentation before use, transport, storage, or disposal.

Why is Ammonium Dichromate considered hazardous?

Ammonium Dichromate is a strong oxidizer and contains chromium(VI), which presents serious health hazards, including carcinogenicity. It can also harm the environment. Avoid exposure and use it only with suitable engineering controls, trained personnel, and procedures designed for chromium(VI) compounds.

Is Ammonium Dichromate suitable for school chemistry demonstrations?

It is not appropriate for routine school demonstrations because of its serious toxicity, carcinogenicity, oxidizing properties, and hazardous decomposition products. Any specialized use should require institutional approval, a documented risk assessment, appropriate containment, and trained supervision.

How should Ammonium Dichromate be stored and handled?

Store it in a compatible, tightly closed and clearly labelled container in a cool, dry area designated for oxidizing and hazardous chemicals. Keep it away from combustible materials, reducing agents, and incompatible substances. Follow the current Safety Data Sheet and applicable hazardous-waste procedures.

Storage Conditions for Ammonium Dichromate

Store in a tightly closed, compatible, clearly labelled container in a cool, dry, well-ventilated area designated for oxidizing chemicals. Segregate it from combustible materials, organic substances, reducing agents, and other incompatible chemicals. Restrict access to trained personnel and follow applicable regulations and the current Safety Data Sheet.

Precautions for Handling Ammonium Dichromate

Only trained personnel in appropriately equipped laboratories should handle this chromium(VI) oxidizer. Review the current Safety Data Sheet and documented risk assessment, and use suitable containment, protective gloves, eye protection, and any required respiratory controls. Avoid dust and all skin contact. Prevent environmental release and manage spills and waste as hazardous chromium-containing material under institutional procedures and applicable regulations.